diff --git a/main.asm b/main.asm
index d19a166..5b2985a 100644
--- a/main.asm
+++ b/main.asm
@@ -2,36 +2,46 @@
 .require "platform/c64_0.oph"
 .require "platform/c64kernal.oph"
 
-.alias go_u #1  ; 上
-.alias go_d #2  ; 下
-.alias go_l #4  ; 左
-.alias go_r #8  ; 右
+.alias cblk $bf
+
+.alias go_u $55	 ; 上
+.alias go_d $5f	 ; 下
+.alias go_l $1d	 ; 左
+.alias go_r $32	 ; 右
+.alias st_g $a0	 ; 开始/暂停
+.alias ed_g $20	 ; 结束
 
 .data zp
-.space d 1 ; 方向 值定义如上
-.space c 1 ; 长度 最大255 最小0
+.space d 1		; 方向 值定义如上
+.space c 1		; 🐍长度 最大255 最小0
+.space s 2		; 得分 小端序
 .text
 
 main:
 .scope
-    lda #147    ;清屏
-    jsr chrout
-    
-    rts
+	`init
+	
+	rts
 .scend
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-; getdir 返回一个方向到d
+; init 初始化界面、变量
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-getdir:
-.macro
-    jsr chrin
-    sta d
+.macro init
+	lda #147	 ;清屏
+	jsr chrout
+	lda #$aa
+	; sta s
+	sta s + 1
+	jsr printscore
 .macend
 
+.require "printscore.asm"
+.require "print16.asm"
+.require "print.asm"
 
 .checkpc $A000	; text段边界
-.data zp        ; 零页段边界
+.data zp		  ; 零页段边界
 .checkpc $80
 .data
 .checkpc $D000	; data段边界
\ No newline at end of file
diff --git a/print.asm b/print.asm
new file mode 100644
index 0000000..e8df889
--- /dev/null
+++ b/print.asm
@@ -0,0 +1,31 @@
+.macro print
+	pha
+	tya
+	pha
+    lda #<_1	; 取参数的低八位
+    ldy #>_1	; 取参数的高八位
+    jsr printstr
+	pla
+	tay
+	pla
+.macend
+
+; PRINTSTR routine.  Accumulator stores the low byte of the address,
+; X register stores the high byte.
+.scope
+.data zp
+.space _ptr 2
+.text
+printstr:
+    sta _ptr
+    sty _ptr+1
+    ldy #$00
+_lp:
+	lda (_ptr),y
+    beq _done
+    jsr chrout
+    iny
+    bne _lp
+_done:
+	rts
+.scend
\ No newline at end of file
diff --git a/print16.asm b/print16.asm
new file mode 100644
index 0000000..b8d4747
--- /dev/null
+++ b/print16.asm
@@ -0,0 +1,73 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; print16 从内存打印16位int(十进制5位),空位补0
+; 以BE方式存储以便打印
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+.macro print16
+.data zp
+.space _num 6
+.text
+	pha
+	txa
+	pha
+	
+    lda #0
+    ldx #6
+*   dex
+    sta _num, x
+    bne -
+
+	`splitbyte _1, 4
+	`splitbyte _1 + 1, 2
+    `carry
+	`print _num
+
+	pla
+	tax
+	pla
+    rts
+
+mod10:
+    lda _num, y
+    ldx #$ff
+*   inx
+    clc
+    sbc #10
+    bcc -
+    clc
+    adc #$3a
+    sta _num, y
+    txa
+    dey
+    adc _num, y
+    sta _num, y
+    rts
+.macend
+
+.macro splitbyte
+	lda _1
+    jsr printbyte
+	sta _num + _2
+	lsr
+	lsr
+	lsr
+	lsr
+	sta _num + _2 - 1
+	lda #$0f
+	ora _num + _2
+	sta _num + _2
+.macend
+
+.macro carry
+    tya
+    pha
+
+    ldy #4
+*   jsr mod10
+    ; dey
+    bne -
+    
+    pla
+    tay
+.macend
+
+.require "printbyte.asm"
\ No newline at end of file
diff --git a/printbyte.asm b/printbyte.asm
new file mode 100644
index 0000000..30ebd2e
--- /dev/null
+++ b/printbyte.asm
@@ -0,0 +1,17 @@
+.data zp
+.space _na 1	; a的临时存放处
+.text
+printbyte:
+    sta _na
+    txa
+    pha
+    ldx #8	    ; 打印8bit
+*   lda #$30	; a = '0'
+    asl _na		; 左移一位，溢出到c
+    adc #0		; a = a + c + 0
+    jsr chrout	; putchar(a)
+    dex			; x--
+    bne -		; if(x != 0) goto 上个星号
+    pla
+    tax
+    rts
\ No newline at end of file
diff --git a/printinput.asm b/printinput.asm
index 3fabc98..30266ac 100644
--- a/printinput.asm
+++ b/printinput.asm
@@ -2,11 +2,6 @@
 .require "platform/c64header.oph"
 .require "platform/c64kernal.oph"
 
-.data
-.org $C000
-.space _na 1	; a的临时存放处
-
-.text
 main:
 *   jsr getin
     beq skip
@@ -20,17 +15,4 @@ skip:
 end:
     rts
 
-printbyte:
-    sta _na
-    txa
-    pha
-    ldx #8	    ; 打印8bit
-*   lda #$30	; a = '0'
-    asl _na		; 左移一位，溢出到c
-    adc #0		; a = a + c + 0
-    jsr chrout	; putchar(a)
-    dex			; x--
-    bne -		; if(x != 0) goto 上个星号
-    pla
-    tax
-    rts
\ No newline at end of file
+.require "printbyte.asm"
\ No newline at end of file
diff --git a/printinput.prg b/printinput.prg
index 2dd683f..b90fd02 100644
Binary files a/printinput.prg and b/printinput.prg differ
diff --git a/printscore.asm b/printscore.asm
new file mode 100644
index 0000000..3e670df
--- /dev/null
+++ b/printscore.asm
@@ -0,0 +1,20 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; printscore 打印分数
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+printscore:
+.scope
+	lda #cblk
+	ldx #15
+*	jsr chrout
+	dex
+	bne -
+	`print score_str
+    `print16 s
+	ldx #15
+*	jsr chrout
+	dex
+	bne -
+	rts
+.scend
+
+score_str: .byte "SCORE",0
\ No newline at end of file
diff --git a/snake.prg b/snake.prg
index ce37aa2..428e6bb 100644
Binary files a/snake.prg and b/snake.prg differ
diff --git a/snake.prg.p2k.cfg b/snake.prg.p2k.cfg
index 6b6a633..b3890d4 100644
--- a/snake.prg.p2k.cfg
+++ b/snake.prg.p2k.cfg
@@ -1,22 +1,20 @@
 # Snake Fumiama
 # C64
 
-#Recalbox's Pad-to-Keyboard configuration
-#Xenon 1 (1983)(IJK Software Ltd).tap 
-#ORIC ATMOS
-
 # Moves
-0:right = down ;; a droite
-0:left = left ;; a gauche
-0:j1right = down ;; a droite
-0:j1left = left ;; a gauche
+0:right = down
+0:left = left
+0:j1right = down
+0:j1left = left
+
+0:up = U
+0:j1up = U
 
 # Actions
-0:b = up ;; DISENGAGE
-0:a = space  ;; tire
+0:a = space
 
 # Menu
-0:l1 = esc ;; retour menu
-0:l2 = V ;; reglage volume
-0:select = I ;; instruction
-0:r1 = S ;; niveau de jeu
\ No newline at end of file
+0:l1 = esc
+0:l2 = V
+0:select = I
+0:r1 = S
\ No newline at end of file